J/A+A/429/309ivo://CDS.VizieR/J/A+A/429/309doi:10.26093/cds/vizier.34290309CDSFrasca A.Lanza A.F.2017-07-04T07:08:39Z2005-03-05T12:46:26ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frvariable-starsradial-velocityWe studied orbital period changes in the non-eclipsing close binary HR 1099, one of the most bright members of the RS CVn class of magnetically active binary systems. Intermediate-resolution optical spectroscopy and IUE archive spectra were used to build radial-velocity curves yielding epochs of superior conjunction with an accuracy of 0.01 days. The final database ranged from 1976 to 2002 and allowed us a better assessment of the amplitude of the orbital period variation and its timescale.2005A&A...429..309Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/429/309CatalogResearchIsServedByTAP VizieR generic servicerelated-toVI/110 : Final Merged Log of IUE Observations (NASA-ESA, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/429/309https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/429/309http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/429/309https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/429/309https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/429/309http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/429/309GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/429/309/table1Radial velocities from IUE spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.intSpectrumSpectrum designation in IUE ArchivecharHJDHeliocentric Julian dateddoubleRVG5Radial velocity of the G5 V component of HR 1099km/sfloate_RVG5rms uncertainty on RVG5km/sfloatJ/A+A/429/309/table2Radial velocity of the G5 V and K1 IV components of HR 1099 from Osservatorio Astrofisico di Catania (OAC) optical spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.intHJDHeliocentric Julian dateddoubleRVG5? Radial velocity of the G5 V component of HR 1099km/sfloatnullablee_RVG5? rms uncertainty on RVG5km/sfloatnullableRVK1? Radial velocity of the K1 IV component of HR 1099km/sfloatnullablee_RVK1? rms uncertainty on RVK1km/sfloatnullable